What are forces? -- Why do things fall downwards? -- What makes magnets attract? -- What happens when you squash a spring? -- Why do things start moving? -- Why do things stop moving? -- What do two forces do? -- Why do things move in circles? -- What force slows things down? -- How does the air slow things down? -- How do we measure forces? -- What is pressure? -- How do we make forces bigger?

What are forces? -- Why do things fall downwards? -- What makes magnets attract? -- What happens when you squash a spring? -- Why do things start moving? -- Why do things stop moving? -- What do two forces do? -- Why do things move in circles? -- What force slows things down? -- How does the air slow things down? -- How do we measure forces? -- What is pressure? -- How do we make forces bigger?